mcs = xen_mc_entry(0);
MULTI_stack_switch(mcs.mc, __KERNEL_DS, thread->sp0);
xen_mc_issue(PARAVIRT_LAZY_CPU);
+ tss->x86_tss.sp0 = thread->sp0;
}
static void xen_set_iopl_mask(unsigned mask)
{
}
- #ifdef CONFIG_X86_LOCAL_APIC
- static unsigned long xen_set_apic_id(unsigned int x)
- {
- WARN_ON(1);
- return x;
- }
- static unsigned int xen_get_apic_id(unsigned long x)
- {
- return ((x)>>24) & 0xFFu;
- }
- static u32 xen_apic_read(u32 reg)
- {
- struct xen_platform_op op = {
- .cmd = XENPF_get_cpuinfo,
- .interface_version = XENPF_INTERFACE_VERSION,
- .u.pcpu_info.xen_cpuid = 0,
- };
- int ret = 0;
-
- /* Shouldn't need this as APIC is turned off for PV, and we only
- * get called on the bootup processor. But just in case. */
- if (!xen_initial_domain() || smp_processor_id())
- return 0;
-
- if (reg == APIC_LVR)
- return 0x10;
-
- if (reg != APIC_ID)
- return 0;
-
- ret = HYPERVISOR_dom0_op(&op);
- if (ret)
- return 0;
-
- return op.u.pcpu_info.apic_id << 24;
- }
-
- static void xen_apic_write(u32 reg, u32 val)
- {
- /* Warn to see if there's any stray references */
- WARN_ON(1);
- }
-
- static u64 xen_apic_icr_read(void)
- {
- return 0;
- }
-
- static void xen_apic_icr_write(u32 low, u32 id)
- {
- /* Warn to see if there's any stray references */
- WARN_ON(1);
- }
-
- static void xen_apic_wait_icr_idle(void)
- {
- return;
- }
-
- static u32 xen_safe_apic_wait_icr_idle(void)
- {
- return 0;
- }
-
- static void set_xen_basic_apic_ops(void)
- {
- apic->read = xen_apic_read;
- apic->write = xen_apic_write;
- apic->icr_read = xen_apic_icr_read;
- apic->icr_write = xen_apic_icr_write;
- apic->wait_icr_idle = xen_apic_wait_icr_idle;
- apic->safe_wait_icr_idle = xen_safe_apic_wait_icr_idle;
- apic->set_apic_id = xen_set_apic_id;
- apic->get_apic_id = xen_get_apic_id;
-
- #ifdef CONFIG_SMP
- apic->send_IPI_allbutself = xen_send_IPI_allbutself;
- apic->send_IPI_mask_allbutself = xen_send_IPI_mask_allbutself;
- apic->send_IPI_mask = xen_send_IPI_mask;
- apic->send_IPI_all = xen_send_IPI_all;
- apic->send_IPI_self = xen_send_IPI_self;
- #endif
- }
-
- #endif
-
static void xen_clts(void)
{
struct multicall_space mcs;
/*
* set up the basic apic ops.
*/
- set_xen_basic_apic_ops();
+ xen_init_apic();
#endif
if (xen_feature(XENFEAT_mmu_pt_update_preserve_ad)) {
if (HYPERVISOR_dom0_op(&op) == 0)
boot_params.kbd_status = op.u.firmware_info.u.kbd_shift_flags;
- xen_init_apic();
-
/* Make sure ACS will be enabled */
pci_request_acs();
* IN THE SOFTWARE.
*/
+ #define pr_fmt(fmt) "xen-pvscsi: " fmt
+
#include <stdarg.h>
#include <linux/module.h>
#include <xen/interface/grant_table.h>
#include <xen/interface/io/vscsiif.h>
- #define DPRINTK(_f, _a...) \
- pr_debug("(file=%s, line=%d) " _f, __FILE__ , __LINE__ , ## _a)
-
#define VSCSI_VERSION "v0.1"
#define VSCSI_NAMELEN 32
{
struct scsiback_tpg *tpg = pending_req->v2p->tpg;
- pr_err("xen-pvscsi[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x drv=%02x\n",
+ pr_err("[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x drv=%02x\n",
tpg->tport->tport_name, pending_req->v2p->lun,
pending_req->cmnd[0], status_byte(errors), msg_byte(errors),
host_byte(errors), driver_byte(errors));
BUG_ON(err);
for (i = 0; i < cnt; i++) {
if (unlikely(map[i].status != GNTST_okay)) {
- pr_err("xen-pvscsi: invalid buffer -- could not remap it\n");
+ pr_err("invalid buffer -- could not remap it\n");
map[i].handle = SCSIBACK_INVALID_HANDLE;
err = -ENOMEM;
} else {
for (i = 0; i < cnt; i++) {
if (get_free_page(pg + mapcount)) {
put_free_pages(pg, mapcount);
- pr_err("xen-pvscsi: no grant page\n");
+ pr_err("no grant page\n");
return -ENOMEM;
}
gnttab_set_map_op(&map[mapcount], vaddr_page(pg[mapcount]),
return 0;
if (nr_segments > VSCSIIF_SG_TABLESIZE) {
- DPRINTK("xen-pvscsi: invalid parameter nr_seg = %d\n",
+ pr_debug("invalid parameter nr_seg = %d\n",
ring_req->nr_segments);
return -EINVAL;
}
nr_segments += n_segs;
}
if (nr_segments > SG_ALL) {
- DPRINTK("xen-pvscsi: invalid nr_seg = %d\n",
- nr_segments);
+ pr_debug("invalid nr_seg = %d\n", nr_segments);
return -EINVAL;
}
}
- /* free of (sgl) in fast_flush_area()*/
+ /* free of (sgl) in fast_flush_area() */
pending_req->sgl = kmalloc_array(nr_segments,
sizeof(struct scatterlist), GFP_KERNEL);
if (!pending_req->sgl)
v2p = scsiback_do_translation(info, &vir);
if (!v2p) {
pending_req->v2p = NULL;
- DPRINTK("xen-pvscsi: doesn't exist.\n");
+ pr_debug("the v2p of (chn:%d, tgt:%d, lun:%d) doesn't exist.\n",
+ vir.chn, vir.tgt, vir.lun);
return -ENODEV;
}
pending_req->v2p = v2p;
(pending_req->sc_data_direction != DMA_TO_DEVICE) &&
(pending_req->sc_data_direction != DMA_FROM_DEVICE) &&
(pending_req->sc_data_direction != DMA_NONE)) {
- DPRINTK("xen-pvscsi: invalid parameter data_dir = %d\n",
+ pr_debug("invalid parameter data_dir = %d\n",
pending_req->sc_data_direction);
return -EINVAL;
}
pending_req->cmd_len = ring_req->cmd_len;
if (pending_req->cmd_len > VSCSIIF_MAX_COMMAND_SIZE) {
- DPRINTK("xen-pvscsi: invalid parameter cmd_len = %d\n",
+ pr_debug("invalid parameter cmd_len = %d\n",
pending_req->cmd_len);
return -EINVAL;
}
if (RING_REQUEST_PROD_OVERFLOW(ring, rp)) {
rc = ring->rsp_prod_pvt;
- pr_warn("xen-pvscsi: Dom%d provided bogus ring requests (%#x - %#x = %u). Halting ring processing\n",
+ pr_warn("Dom%d provided bogus ring requests (%#x - %#x = %u). Halting ring processing\n",
info->domid, rp, rc, rp - rc);
info->ring_error = 1;
return 0;
scsiback_device_action(pending_req, TMR_LUN_RESET, 0);
break;
default:
- pr_err_ratelimited("xen-pvscsi: invalid request\n");
+ pr_err_ratelimited("invalid request\n");
scsiback_do_resp_with_sense(NULL, DRIVER_ERROR << 24,
0, pending_req);
kmem_cache_free(scsiback_cachep, pending_req);
lunp = strrchr(phy, ':');
if (!lunp) {
- pr_err("xen-pvscsi: illegal format of physical device %s\n",
- phy);
+ pr_err("illegal format of physical device %s\n", phy);
return -EINVAL;
}
*lunp = 0;
lunp++;
if (kstrtouint(lunp, 10, &lun) || lun >= TRANSPORT_MAX_LUNS_PER_TPG) {
- pr_err("xen-pvscsi: lun number not valid: %s\n", lunp);
+ pr_err("lun number not valid: %s\n", lunp);
return -EINVAL;
}
mutex_unlock(&scsiback_mutex);
if (!tpg) {
- pr_err("xen-pvscsi: %s:%d %s\n", phy, lun, error);
+ pr_err("%s:%d %s\n", phy, lun, error);
return -ENODEV;
}
if ((entry->v.chn == v->chn) &&
(entry->v.tgt == v->tgt) &&
(entry->v.lun == v->lun)) {
- pr_warn("xen-pvscsi: Virtual ID is already used. Assignment was not performed.\n");
+ pr_warn("Virtual ID is already used. Assignment was not performed.\n");
err = -EEXIST;
goto out;
}
}
static void scsiback_do_add_lun(struct vscsibk_info *info, const char *state,
- char *phy, struct ids_tuple *vir)
+ char *phy, struct ids_tuple *vir, int try)
{
if (!scsiback_add_translation_entry(info, phy, vir)) {
if (xenbus_printf(XBT_NIL, info->dev->nodename, state,
"%d", XenbusStateInitialised)) {
- pr_err("xen-pvscsi: xenbus_printf error %s\n", state);
+ pr_err("xenbus_printf error %s\n", state);
scsiback_del_translation_entry(info, vir);
}
- } else {
+ } else if (!try) {
xenbus_printf(XBT_NIL, info->dev->nodename, state,
"%d", XenbusStateClosed);
}
if (!scsiback_del_translation_entry(info, vir)) {
if (xenbus_printf(XBT_NIL, info->dev->nodename, state,
"%d", XenbusStateClosed))
- pr_err("xen-pvscsi: xenbus_printf error %s\n", state);
+ pr_err("xenbus_printf error %s\n", state);
}
}
switch (op) {
case VSCSIBACK_OP_ADD_OR_DEL_LUN:
- if (device_state == XenbusStateInitialising)
- scsiback_do_add_lun(info, state, phy, &vir);
- if (device_state == XenbusStateClosing)
+ switch (device_state) {
+ case XenbusStateInitialising:
+ scsiback_do_add_lun(info, state, phy, &vir, 0);
+ break;
+ case XenbusStateConnected:
+ scsiback_do_add_lun(info, state, phy, &vir, 1);
+ break;
+ case XenbusStateClosing:
scsiback_do_del_lun(info, state, &vir);
+ break;
+ default:
+ break;
+ }
break;
case VSCSIBACK_OP_UPDATEDEV_STATE:
/* modify vscsi-devs/dev-x/state */
if (xenbus_printf(XBT_NIL, dev->nodename, state,
"%d", XenbusStateConnected)) {
- pr_err("xen-pvscsi: xenbus_printf error %s\n",
- str);
+ pr_err("xenbus_printf error %s\n", str);
scsiback_del_translation_entry(info, &vir);
xenbus_printf(XBT_NIL, dev->nodename, state,
"%d", XenbusStateClosed);
}
}
break;
- /*When it is necessary, processing is added here.*/
+ /* When it is necessary, processing is added here. */
default:
break;
}
struct vscsibk_info *info = kzalloc(sizeof(struct vscsibk_info),
GFP_KERNEL);
- DPRINTK("%p %d\n", dev, dev->otherend_id);
+ pr_debug("%s %p %d\n", __func__, dev, dev->otherend_id);
if (!info) {
xenbus_dev_fatal(dev, -ENOMEM, "allocating backend structure");
return 0;
fail:
- pr_warn("xen-pvscsi: %s failed\n", __func__);
+ pr_warn("%s failed\n", __func__);
scsiback_remove(dev);
return err;
}
snprintf(&tport->tport_name[0], VSCSI_NAMELEN, "%s", &name[off]);
- pr_debug("xen-pvscsi: Allocated emulated Target %s Address: %s\n",
+ pr_debug("Allocated emulated Target %s Address: %s\n",
scsiback_dump_proto_id(tport), name);
return &tport->tport_wwn;
struct scsiback_tport *tport = container_of(wwn,
struct scsiback_tport, tport_wwn);
- pr_debug("xen-pvscsi: Deallocating emulated Target %s Address: %s\n",
+ pr_debug("Deallocating emulated Target %s Address: %s\n",
scsiback_dump_proto_id(tport), tport->tport_name);
kfree(tport);
static int scsiback_check_stop_free(struct se_cmd *se_cmd)
{
/*
- * Do not release struct se_cmd's containing a valid TMR
- * pointer. These will be released directly in scsiback_device_action()
+ * Do not release struct se_cmd's containing a valid TMR pointer.
+ * These will be released directly in scsiback_device_action()
* with transport_generic_free_cmd().
*/
if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
return -ENOMEM;
}
/*
- * Initialize the struct se_session pointer
+ * Initialize the struct se_session pointer
*/
tv_nexus->tvn_se_sess = transport_init_session(TARGET_PROT_NORMAL);
if (IS_ERR(tv_nexus->tvn_se_sess)) {
name);
goto out;
}
- /*
- * Now register the TCM pvscsi virtual I_T Nexus as active with the
- * call to __transport_register_session()
- */
- __transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
+ /* Now register the TCM pvscsi virtual I_T Nexus as active. */
+ transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl,
tv_nexus->tvn_se_sess, tv_nexus);
tpg->tpg_nexus = tv_nexus;
return -EBUSY;
}
- pr_debug("xen-pvscsi: Removing I_T Nexus to emulated %s Initiator Port: %s\n",
+ pr_debug("Removing I_T Nexus to emulated %s Initiator Port: %s\n",
scsiback_dump_proto_id(tpg->tport),
tv_nexus->tvn_se_sess->se_node_acl->initiatorname);
unsigned char i_port[VSCSI_NAMELEN], *ptr, *port_ptr;
int ret;
/*
- * Shutdown the active I_T nexus if 'NULL' is passed..
+ * Shutdown the active I_T nexus if 'NULL' is passed.
*/
if (!strncmp(page, "NULL", 4)) {
ret = scsiback_drop_nexus(tpg);
*/
scsiback_drop_nexus(tpg);
/*
- * Deregister the se_tpg from TCM..
+ * Deregister the se_tpg from TCM.
*/
core_tpg_deregister(se_tpg);
kfree(tpg);
struct target_fabric_configfs *fabric;
int ret;
- pr_debug("xen-pvscsi: fabric module %s on %s/%s on "UTS_RELEASE"\n",
+ pr_debug("fabric module %s on %s/%s on "UTS_RELEASE"\n",
VSCSI_VERSION, utsname()->sysname, utsname()->machine);
/*
* Register the top level struct config_item_type with TCM core
* Setup our local pointer to *fabric
*/
scsiback_fabric_configfs = fabric;
- pr_debug("xen-pvscsi: Set fabric -> scsiback_fabric_configfs\n");
+ pr_debug("Set fabric -> scsiback_fabric_configfs\n");
return 0;
};
target_fabric_configfs_deregister(scsiback_fabric_configfs);
scsiback_fabric_configfs = NULL;
- pr_debug("xen-pvscsi: Cleared scsiback_fabric_configfs\n");
+ pr_debug("Cleared scsiback_fabric_configfs\n");
};
static const struct xenbus_device_id scsiback_ids[] = {
xenbus_unregister_driver(&scsiback_driver);
out_cache_destroy:
kmem_cache_destroy(scsiback_cachep);
- pr_err("xen-pvscsi: %s: error %d\n", __func__, ret);
+ pr_err("%s: error %d\n", __func__, ret);
return ret;
}
projects / karo-tx-linux.git / commitdiff